Water level fluctuations for managing excessive plant biomass in shallow lakes
- Paillisson, Jean-Marc
- Marion, Loic
DOIAbstract
International audienceThe importance of water level fluctuations (WLF) and a suite of linked factors in lake management has been the focus of active research in the past decades. The interest of WLF as a method to limit excessive macrophyte development is addressed in this paper. For this, we assessed the response of three common nymphaeid species (Nymphaea alba, Nuphar lutea and Nymphoides peltata) in terms of biomass to slight changes in water regime (<50 cm) in a large shallow eutrophic lake in the frame of a long-term study (1995-2007). The modelled response of the plants to several descriptors of WLF (water level (WL) and duration of exposure to high water levels (D) in the course of various plant life cycle stages) varied between spec...
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